[So] how pitiful is the one who is prevented from goodness in his old age for sins committed during [his] youth!
It is not necessary for the one who makes istikhaarah that he see anything to guide him to that which is best for him. Rather, when something is made easy for him after having made istikhaarah, then he should know that is what is good [for him].
There is evidence here that the water of Zam Zam benefits the drinker for whatever reason he drinks it for – whether it is for the affairs of this world or the hereafter…
Supplication is the weapon of the strong and the weak, and it is from the delights of the Prophets and the sincere, and with it they seek [aid from Allaah] to ward off all harm.